September 2007
Intermediate to advanced
448 pages
13h 52m
English
book
Inside Microsoft® SQL Server™ 2005: Query Tuning and Optimization
by Kalen Delaney, Sunil Agarwal, Craig Freedman, Ron Talmage, Adam Machanic
Content preview from Inside Microsoft® SQL Server™ 2005: Query Tuning and Optimization
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Plan Cache Internals
Knowing when and how plans are reused or recompiled can help you design well-performing applications. The more you understand about optimal query plans, and how different actual values and cardinalities require different plans, the more you can determine when recompilation is a useful thing. When you are getting unnecessary recompiles, or when SQL Server is not recompiling when you think it should, your troubleshooting efforts will be easier the more you know about how plans are managed internally. In this section, we’ll explore the internal organization of the plan cache, the metadata available, how SQL Server finds a plan in cache, plan cache sizing, and SQL Server’s plan eviction policy.
Cache Stores
SQL Server’s plan ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.